<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE HTML>
<html>
<head>
  <title>Oracle作业展示</title>
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <!-- 引入 Bootstrap -->
  <link href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet">
  <style type="text/css">
    a {
      text-decoration: none;
      color: black;
      font-size: 18px;
    }
    h3 {
      width: 180px;
      height: 38px;
      margin: 100px auto;
      text-align: center;
      line-height: 38px;
      background: deepskyblue;
      border-radius: 4px;
    }
    * {margin: 0; padding: 0; box-sizing: border-box;}
    .father {position: relative;}
    .son1 {position: absolute;bottom:50%;margin-bottom: -70px;left: 50%;margin-left: -50px;
    }
    #bg{
        width: 100%;
        height: 100%;
        top: 0px;
        left: 0px;
        position: absolute;
    }
  </style>
</head>
<body>
<img id="bg" src ="${pageContext.request.contextPath}/image/backgroud.jpg" style="z-index: -1" />

<div class="father">
        <div class="son1" style="size: 100px"><a href="${pageContext.request.contextPath}/shouye">开始展示</a></div>
</div>

</body>
</html>